[Public WebGL] EXT_disjoint_timer_query disabled
Sun May 13 09:48:40 PDT 2018
My guess is the extension has been disabled due to recently discovered "
rowhammer attack vector.
> EXT_DISJOINT_TIMER_QUERY is an OpenGL extension developed to provide
developers with more detailed information about the performance of their
applications . This extension, if made available to the system by the
GPU driver, is accessible from both WebGL and WebGL2, and provides the
TIMESTAMP_EXT. Such timers allow an attacker to measure the timing of
secret operations (e.g., memory accesses) performed either by the CPU or
On Sun, May 13, 2018 at 4:32 PM Florian Bösch <[email protected]> wrote:
> On Fri, Apr 6, 2018 at 12:50 AM, Ken Russell <[email protected]> wrote:
>> We can not currently discuss why the extension has been disabled. We
>> should be able to do so in about a month.
> It's now been a month and a week since this statement.
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